i had a bps SPS 10/10 that burned out in less than a year. ive sent it in for replacement. it had a 2 yr gurantee. you can upgrade those chargers if you want. they are made by promariner and they have several grades of charger. i bought the cheaper model and it was shot within a year. i replaced that charger with a dual pro se 10/10. its got a 3 year gurantee. If pro mariner replaces the bad charger, ill use it for a spare or send it back in for a upgrade and get a model with a lifetime gurantee. If you plan on using your charger a lot be sure to get a good one with a good gurantee. any chargers i replace in the future will have a life time gurantee. im sick of messing with chargers that dont hold up. i have 3 onboard chargers on my boat. i carry 5 batts. 4 deep cycles and one cranking. i have a on board on the front for the two batts there, one at the rear for the two deep cycles there and one hooked up to the cranking bat. you aint saving money by buyin a cheap charger.
listen with your eyes---its the only way to beleive what you hear...